• if you draft and mainboard Silvercoat Lion you get to put Food Chain in your deck. That's the upside of Silvercoat.

• when Liberated Livestock dies, you may search your library, graveyard, and sideboard for up to three creatures with types, cat, bird, ox. You may put these into play instead of a token of the same type.

( Hence I went looking for Oxen additions, and found the incredible slurs of the Goma Fada nomads.)

Ironhoof Ox looks the most like the ox in Liberated Livestock, but Wild Ox makes the most sense.